Feature: query based "magic" folders

### What feature or improvement do you think would benefit Files?

Say I have a "source" folder with documents that I have manually added metadata to categorize
```
/mydir/
/more-docs
more-doc1.txt
more-doc2.txt
doc1.txt
doc2.txt
doc3.txt
```

I'd love the ability to query a source folder to filter files against that metadata and, crucially, create "magic" folders that encapsulate/shortcut those queries where the contents of those folders represent the queried files.

This would also necessitate a simple interface to edit a file's metadata.

Examples of use cases are;
- Viewing music against `genre`, `artist`, `date` (or other arbitrary tags)
- Viewing videos against `genre`, `director`, `actors`, `year`, etc

## Example

I would store my source files in a `/source` folder and create "query based magic folders" next to it;

```
/source
/video1/video1.mp4
/video2/video2.mp4

# SELECT "**/*" FROM "./source" GROUP BY director
/by-director
/foo
video1.mp4 -> ../../source/video1.mp4
/bar
video2.mp4

# SELECT "**/*" FROM "./source" GROUP BY genre
/by-genre
/action
video1.mp4 -> ../../source/video1.mp4
/adventure
video2.mp4
```

Note: the query syntax is just an example as it needs to be a richer to accommodate concepts like creating sub folders, grouping associated files together, search by content hash, etc.

### Requirements

- Creating a "magic" folder whose contents are a representation of a search query

### Files Version

0.0.0

### Windows Version

11

### Comments

I guess I could implement this outside of Files as a CLI tool (or daemon service) that generates symlinks from a supplied query, but it would be cool to have